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延性是评价结构抗震性能的最主要的参数之一,为了研究轴压比对带有施工缝框架结构的延性的影响,通过对带有施工缝框架进行低周反复荷载试验,得到骨架曲线,位移延性系数和滞回曲线,并与相同条件下4根框架柱的试验得到的结果进行对比分析,得到随着轴压比的提高,框架延性有所降低,且施工缝的存在对框架延性降低的影响减小。
Ductility is one of the most important parameters to evaluate the seismic performance of structures. In order to study the effect of axial compression ratio on the ductility of frame structures with construction seams, low-cycle cyclic loading tests with construction seam frames are performed to obtain the skeleton curves, displacement Ductility coefficient and hysteresis curve were calculated and compared with the experimental results of the four frame columns under the same conditions. With the increase of the axial compression ratio, the ductility of the frame is reduced and the ductility of the frame is reduced by the presence of the construction joint Impact reduced.